Class: Watir::TaggedElementLocator

Inherits:
Locator
  • Object
show all
Defined in:
lib/watir/locator.rb

Direct Known Subclasses

ElementLocator

Constant Summary

Constants included from Watir

ATTACHER

Instance Method Summary collapse

Methods inherited from Locator

#normalize_specifiers!

Methods included from Watir

_register, _unregister, autoit, #dialog, until_with_timeout

Constructor Details

#initialize(container, tag) ⇒ TaggedElementLocator

Returns a new instance of TaggedElementLocator.



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# File 'lib/watir/locator.rb', line 27

def initialize(container, tag)
  @container = container
  @tag = tag
end

Instance Method Details

#each_element(tag) ⇒ Object 



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# File 'lib/watir/locator.rb', line 43

def each_element tag
  @container.document.getElementsByTagName(tag).each do |ole_element|
    yield Element.new(ole_element)
  end
end

#locate ⇒ Object 



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# File 'lib/watir/locator.rb', line 49

def locate
  count = 0
  each_element(@tag) do |element|

    catch :next_element do
      @specifiers.each do |how, what|
        next if how == :index
        unless match? element, how, what
          throw :next_element
        end
      end
      count += 1
      unless count == @specifiers[:index]
        throw :next_element
      end
      return element.ole_object
    end

  end # elements

  nil
end

#match?(element, how, what) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/watir/locator.rb', line 71

def match?(element, how, what)
  begin
    method = element.method(how)
  rescue NameError
    raise MissingWayOfFindingObjectException,
          "#{how} is an unknown way of finding a <#{@tag}> element (#{what})"
  end
  case method.arity
  when 0
    what.matches method.call
  when 1
    method.call(what)
  else
    raise MissingWayOfFindingObjectException,
          "#{how} is an unknown way of finding a <#{@tag}> element (#{what})"
  end
end

#set_specifier(how, what) ⇒ Object 



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# File 'lib/watir/locator.rb', line 32

def set_specifier(how, what)
  if how.class == Hash and what.nil?
    specifiers = how
  else
    specifiers = {how => what}
  end

  @specifiers = {:index => 1} # default if not specified

  normalize_specifiers! specifiers
end